CVE-2019-18802
envoy: malformed request header may cause bypass of route matchers resulting in escalation of privileges or information disclosure
Einstufung nach Quelle
Trivys eigenes Label ist CRITICAL. Kritisch laut NVD, Photon OS. Niedriger laut Red Hat (hoch).
Beschreibung
An issue was discovered in Envoy 1.12.0. An untrusted remote client may send an HTTP header (such as Host) with whitespace after the header content. Envoy will treat "header-value " as a different string from "header-value" so for example with the Host header "example.com " one could bypass "example.com" matchers.
Betroffene Pakete und behobene Versionen
| Quelle | Paket | Behoben in |
|---|---|---|
| Photon OS 1.0 | envoy | 1.10.0-6.ph1 |
| Photon OS 2.0 | envoy | 1.10.0-6.ph2 |
Referenzen
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00034.html
- https://access.redhat.com/security/cve/CVE-2019-18802
- https://blog.envoyproxy.io
- https://github.com/envoyproxy/envoy/commits/master
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-356m-vhw2-wcm4
- https://groups.google.com/forum/#!topic/envoy-users/m7z5fGkCzPI
- https://groups.google.com/forum/#%21forum/envoy-users
- https://nvd.nist.gov/vuln/detail/CVE-2019-18802